Story for movie “Robber” has Sol Kyung-Gu playing prison kingpin Jae-Ho. Siwan will play new prisoner Hyun-Soo. Hyun-Soo is the type who refuses to submit to others, while Jae-Ho makes the rules at the prison. Meanwhile, Jae-Ho has eyes on the top position in the criminal gang he belongs to once he is released from prison.